I also noticed the deal was gone today...had been eyeballing it this weekend as an xmas gift for the wife (really!) I called in tonight and decided to get the 510 (already have service w/a 6000). They offered $99 installed with CC autopay, which I don't want. 2nd offer was $123.95, no CC autopay but a 12mo commitment to AT50 or greater...I took this deal. Install is this coming Monday. Guess I just decided whether or not to wait for HDTivo as well...hope the 921 and Uberdish come around soon to add to the mix.
You got me for another 12 months Charlie...please get your head back in the HD game!